See attached file for solution.© BrainMass Inc. brainmass.com March 4, 2021, 6:13 pm ad1c9bdddf
Note 1. Newton's second law, "Fnet = m a" applies to any part or the whole of any object.
Note 2. The only horizontal external force, F, accelerates the whole system, partly to accelerate block m and the rest to accelerate block ...
The solution includes step-by-step calculations for static force.